these 3 derivations will be built:
  /nix/store/8535yfrk88q8v42lmh388a4n5wx0wjls-treefmt.toml.drv
  /nix/store/f2r650wf0i5sq718xs946g1q1yxcyv4n-treefmt.drv
  /nix/store/gzv36sakd2ippi033k30vr2fz4vx483i-treefmt-check.drv